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graphical knowledge engine; background knowledge

Information gathering machine. KOOL!

an Internet utility to assist in the preparation of research papers. Teachers and students can set up research projects with topics and sub-topics. Students may then take advantage of NoteStar's many features to collect and organize their notes and prepare their bibliography page.

Share your pictures, videos and audio on Twitter !

Mutapic is an online picture generator. It is a free tool you can use to rapidly create original art. Click on the green button to start.

largest social publishing company in the world, the Website where tens of millions of people each month publish and discover original writings and documents. On Scribd, you can quickly and easily turn nearly any file-including PDF, Word, PowerPoint and Excel-into a Web document and share it with the world.

I'm sorry about the "ow.ly" address. I was tired! This really is a nice list.

a social bookmarking website for visual contents - vi.sualize.us (read visualize us) allows you to remember your favorite images around the web, and share them with everyone.

Recently launched science and technology news website from Discovery Communications. It features breaking news and in-depth articles related to the Earth, Space, Tech, Animals, Dinosaurs, Archaeology, Human and History.

Lots of stuff to take a look at!